Mobile 4G technology company Adaptix has filed a patent complaint related to wireless base stations against Ericsson at the U.S. International Trade Commission.

Adaptix filed a so-called section 337 complaint against Ericsson, according to USITC documents. In a section 337 complaint, the complaining company typically asks the agency to bar products infringing patents from being imported into the U.S.

The USITC has not released details about the patent complaint. An Ericsson representative declined to comment on the complaint, and Adaptix didn't immediately respond to a request for comments.